发明名称 Modified chess game
摘要 A modified chess game known as Royal Chess is disclosed in which the traditional king and queen pawns are replaced by shield pawns (42, 42A) possessing the traditional moves and characteristics of traditional pawns (40), plus the ability to move laterally one file in either direction of their rank.
申请公布号 US6382626(B1) 申请公布日期 2002.05.07
申请号 US20000665421 申请日期 2000.09.20
申请人 RYFF ANTHONY S. 发明人 RYFF ANTHONY S.
分类号 A63F3/02;(IPC1-7):A63F3/02 主分类号 A63F3/02
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